Lens module

Abstract

The present disclosure relates to the technical field of optical imaging, and in particular, to a lens module. The lens module includes a first lens module and a second lens module. The first lens module is an autofocus module and includes a first lens for imaging and a focus actuator for driving the first lens to perform autofocus. The focus actuator includes a first accommodating space for accommodating the first lens. The second lens module is a fixed-focus module and includes a second lens. The lens module according to the present disclosure can provide an image with good quality at low cost.

What is claimed is: 
     
         1 . A lens module, applied to an imaging device, the lens module comprising:
 a first lens module, the first lens module being an autofocus module and comprising a first lens for imaging and a focus actuator for driving the first lens to perform autofocus, wherein the focus actuator comprises a first accommodating space for accommodating the first lens; and   a second lens module, the second lens module being a fixed-focus module and comprising a second lens.   
     
     
         2 . The lens module according to  claim 1 , wherein the first lens module and the second lens module are arranged side by side in a direction perpendicular to a thickness direction of the first lens. 
     
     
         3 . The lens module according to  claim 2 , wherein the first lens module further comprises a first anti-shake actuator for anti-shake, and the first anti-shake actuator and the focus actuator are designed into an integrated structure. 
     
     
         4 . The lens module according to  claim 1 , wherein the second lens module further comprises a second anti-shake actuator for anti-shake, and the second anti-shake actuator comprising a second accommodating space for accommodating the second lens. 
     
     
         5 . The lens module according to  claim 3 , wherein the second lens module further comprises a second anti-shake actuator for anti-shake, and the second anti-shake actuator comprising a second accommodating space for accommodating the second lens. 
     
     
         6 . The lens module according to  claim 1 , wherein the first lens is a wide-angle lens having a first focal length f1; the second lens is a telephoto lens having a second focal length f2; the first lens module comprises a first sensor, and the first sensor has a pixel size of p1; the second lens module comprises a second sensor, and the second sensor has a pizel size of p2; the lens module has a magnification Z==(f2/f1)*(p1/2), which satisfies that Z≥2. 
     
     
         7 . The lens module according to  claim 1 , wherein the thickness of the second lens module is larger than the thickness of the first lens module.